摘要：
在Linux下配置pppoe，步骤如下：1.安装pppoe软件。这不为过。ape-get-installpppoe就够了。2.设置拨号属性：[cpp]viewplaincopyroot@ubuntu：~#pppoe setup详细过程如下：用户名：[cpp]viewplaincopyUSERNAME˃˃˃输入您的PPPoEusername:测试接口（网卡）：[cpp]viewplaincopy interface˃˃˃输入连接到DSLmodem的以太网接口对于Solaris，这类似于/dev/hme0。对于Linux，它将是h，其中“n”是数字。：Eth0dns:[cpp]viewplaincopy˃˃在此处输入DNS信息：密码：[cpp]view plaincopy密码˃˃请输入您的PPPoEpassword:˃˃请输入PPPoEppassword:˃˃输入您的ppPoEpassword：防火墙：[cpp]viewplaincopy防火墙选项或：0无：此脚本不会设置任何防火墙规则。你有责任感知你的手机的安全。强烈建议您使用某种防火墙规则1-STANDALONE:适用于基本独立的网络冲浪工作站2-MASQUERADE:适用于计算机操作LAN的Internet网关˃˃选择防火墙类型（0-2）：0保存设置：[cpp]viewplaincopyEthernetInterface:eth0用户名：test按需激活：NoDNS:DonotadjustFirewalling:NONE˃˃接受设置和调整配置文件（y/n）？
在Linux下配置pppoe，一般有以下步骤：
1. 安装pppoe软件。这个不多说，ape-get install pppoe即可。
2. 设置拨号属性：
[cpp] view plain copy
- root@ubuntu:~# pppoe-setup
详细过程如下：
用户名：
[cpp] view plain copy
- USER NAME
- >>> Enter your PPPoE user name (default test): test
接口(网卡)：
[cpp] view plain copy
- INTERFACE
- >>> Enter the Ethernet interface connected to the DSL modem
- For Solaris, this is likely to be something like /dev/hme0.
- For Linux, it will be ethn, where 'n' is a number.
- (default eth0): eth0
dns：
[cpp] view plain copy
- >>> Enter the DNS information here:
密码：
[cpp] view plain copy
- PASSWORD
- >>> Please enter your PPPoE password:
- >>> Please re-enter your PPPoE password:
防火墙：
[cpp] view plain copy
- The firewall choices are:
- 0 - NONE: This script will not set any firewall rules. You are responsible
- for ensuring the security of your machine. You are STRONGLY
- recommended to use some kind of firewall rules.
- 1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation
- 2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway
- for a LAN
- >>> Choose a type of firewall (0-2): 0
保存设置：
[cpp] view plain copy
- Ethernet Interface: eth0
- User name: test
- Activate-on-demand: No
- DNS: Do not adjust
- Firewalling: NONE
- >>> Accept these settings and adjust configuration files (y/n)? y
保存成功了。
[cpp] view plain copy
- Congratulations, it should be all set up!
- Type 'pppoe-start' to bring up your PPPoE link and 'pppoe-stop' to bring
- it down. Type 'pppoe-status' to see the link status.
3. 开始拨号
[cpp] view plain copy
- root@ubuntu:~# pppoe-start
到了这一步，如果没有问题的话，应该就可以正常连上pppoe服务器了。
但在实际操作时，我遇到了以下两个问题：
问题1：
[cpp] view plain copy
- root@ubuntu:~# pppoe-setup
- Welcome to the Roaring Penguin PPPoE client setup. First, I will run
- some checks on your system to make sure the PPPoE client is installed
- properly...
- Oops, I can't execute the program '/usr/local/sbin/pppd'. You
- must install the PPP software suite, version 2.3.10 or later.
原因：目录/usr/local/sbin/没有pppd文件
解决方法：
将/usr/sbin/pppoe-setup脚本里PPPD=/usr/local/sbin/pppd
改为PPPD=/usr/sbin/pppd，保存修改后即恢复可正常
问题2：
[cpp] view plain copy
- root@ubuntu:~# pppoe-status: Link is down (can't read pppoe PID file /var/run/pppoe.conf-pppoe.pid.pppoe)
尝试运行pppoe-connect，出现和问题一类似的错误
原因：同问题1所述
解决方法和问题1中类似：
将/usr/sbin/pppoe-connect脚本里PPPD=/usr/local/sbin/pppd
改为PPPD=/usr/sbin/pppd，保存修改后即恢复可正常
总结：
在配置pppoe时遇到奇怪的问题，很有可能是有相应的脚本的路径设置不当造成。